You can get approximate prices for both Uber and Lyft at rideguru.com. However, both companies use dynamic pricing, so prices can vary a good bit. One time one will be cheaper, the next time the other will be cheaper.
My suggestion is to have both apps on your phone and price check every ride in the Orlando market. When you enter your destination into either app, you will get a very accurate fare quote. I would also check both for promotions.
In many places, Uber has many more drivers so their pickups will be better, and they are also often less expensive. However, Orlando is a very saturated market and you will have quick pickups with either company and pretty good fares.